The Lubell Labs System
3400 is a high power underwater sound system designed to
reproduce voice, music, and broadband audio in the pool,
lake, or ocean.

The System 3400 can be connected to standard 12 volt
marine electrical system, or connected directly to a 12
volt battery. The mixer/amplifier features two
microphone inputs and volume controls, an auxiliary
input, and includes a noise-cancelling microphone with
locking PTT switch. Available accessories include ATW-901/H wireless headset
microphone ($219) and cold water cable/bellow option
($268).

The patented Lubell LL916C
underwater speaker is a state-of-the-art piezoelectric
underwater acoustic transducer utilizing the Tonpilz
design. The advantages to this remarkable design include
a broadband response (200Hz-20kHz), high efficiency (60%
@ 1kHz), and an output level of 180dB/uPa/m @ 1kHz.

The LL916C is extremely rugged by virtue of it's
protective cage. The LL916C operates at all pool depths,
and may be used in the lake or ocean * at depths up to
50'.